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AMSN2800DUT4C Datasheet(PDF) 29 Page - Advanced Micro Devices |
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AMSN2800DUT4C Datasheet(HTML) 29 Page - Advanced Micro Devices |
29 / 102 page Chapter 4 Power Management 17 26426C—October 2003 AMD Athlon™ MP Processor Model 10 Data Sheet for Multiprocessor Platforms Preliminary Information Connect State Diagram Figure 5 below and Figure 6 on page 18 show the Northbridge and processor connect state diagrams, respectively. Figure 5. Northbridge Connect State Diagram Condition 1 A disconnect is requested and probes are still pending. 2 A disconnect is requested and no probes are pending. 3 A Connect special cycle from the processor. 4 No probes are pending. 5 PROCRDY is deasserted. 6 A probe needs service. 7 PROCRDY is asserted. 8 Three SYSCLK periods after CLKFWDRST is deasserted. Although reconnected to the system interface, the Northbridge must not issue any non-NOP SysDC commands for a minimum of four SYSCLK periods after deasserting CLKFWDRST. Action A Deassert CONNECT eight SYSCLK periods after last SysDC sent. B Assert CLKFWDRST. C Assert CONNECT. D Deassert CLKFWDRST. Disconnect Pending Connect Disconnect Requested Reconnect Pending Probe Pending 2 Disconnect Probe Pending 1 1 3 2/A 4/A 5/B 3/C 7/D,C 8 6/C 7/D 8 |
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